I'd get a premium. You get a HD, Headset, Backwards compatibility (which HD is for), Component HD cables. All for $70 dollars more which I think is a good deal.
Arcade might suit you better, but you will miss out on a better deal. If you have a HDTV, component cables will help. I'd say the main reason to get a xbox 360 is because of xbox live. If you plan nvr to go online, the online experience will be a big opportunity to miss out on. You can still get xbox live silver , which is free, and not play online games but still wait a week and download demos and videos from xbox live.
So it's your choice, I think the arcade isn't worth it and the premium is a better deal even though you don't need the features. But it could come ahndy one day if u decide to change your mind.
Above I'm a proud Gran Turismo fan, not a Sony fanboy, and now a proud 360 owner, but sharing xbox live accts ATM
End of 2009 Predictions (made Jan 1, 2009): My predictions were pretty accurate, the 360 was over and the Wii was just under.
Wii: 65 mil (yea I'm crazy) 360: 35 mil (its getting there) PS3: 30 mil (the slim better do well)
End of 2010 Predictions (made Jan 7, 2010):
Wii: 81 mil 360: 47 mil PS3: 45 mil
